late 14c., "wholesome, curative, saving, serving to promote health," from health + -ful. Meaning "free from disease, healthy" is attested from 1540s but is rare. Related: Healthfully; healthfulness.
Dickens's relatively healthful exuberance
a healthful environment
healthful sleep
healthful nutrition
a healthful climate
heal-all
healer
healing
health
health-care
healthful
healthy
heap
hear
heard
hearer